Affiliation:
1. University of Dayton, Research Institute, 300 College Park, Dayton, OH 45469
Abstract
The near-field turbulent structure of double-concentric hydrogen-air jet diffusion flames, with or without swirl, has been investigated using conditionally sampled, three-component laser-Doppler velocimetry and coherent anti-Stokes Raman spectroscopy. The turbulent flame zone became thinner and shifted inward as the mean jet velocity was increased, whereas swirl created a radial velocity even at the jet-exit plane, thereby broadening and shifting the flame zone outward. The probability-density functions of velocity components, their 21 moments (up to fourth order), mean temperature, and root-mean-square temperature fluctuation were determined in the near field. The data can be used to validate advanced turbulent combustion models.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference31 articles.
1. Anand, M. S., Pope, S. B., and Mongia, H. C., 1993, “PDF Calculations for Swirling Flows,” AIAA Paper No. 93-0106.
2. Anand, M. S., Takahashi, F., Vangsness, M. D., Durbin, M. D., and Schmoll, W. J., 1996, “An Experimental and Computational Study of Swirling Hydrogen Jet Diffusion Flames,” ASME Journal of Engineering for Gas Turbines and Power, in press.
3. Barlow
R. S.
, and CarterC. D., 1994, Combustion and Flame, Vol. 97, p. 261261.
4. Bilger
R. W.
, 1976, “Turbulent Jet Diffusion Flames,” Progress in Energy and Combustion Science, Vol. 1, pp. 87–109.
5. Chigier, N. A., and Beer, J. M., 1972, Combustion Aerodynamics, Applied Science Publishing, London.
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